Electric fixture.



H. J. MO'REY. ELECTRIC FIXTURE. APPLICATION FILED FEB. 14. 1916.

1,255,910." Patented Feb. 12, 1918.

HARRY J. MOREY, 0F SYRACUSE, NEW YORK.

ELECTRIC FIXTURE.

Specification of Letters Patent.

Patented Feb. 1L2, 1918.

Application filed February 14, 1916. Serial No. 78,257.

To all whom it may concern Be it known that I, HARRY J. M01213, a citizen of the United States, residing at Syracuse, Onondaga county, State of New York, have invented certain new and useful Improvements in Electric Fixtures, of which the following is a specification.

My invention relates to an electric fixture and has particular reference to the means for securing the metal canopy or shell to the insulating base of the fixture.

The principal object is to provide simple means for holding the shell to the base and one which will permit the shell to be readily detached from the base when necessary but which will hold it securely when the shell is in place.

The above and other objects and the novel features of my invention will be apparent from the following description taken in connection with the drawing, in which,

Figure 1 is a side elevation of an electric fixture embodying my invention;

Fig. 2 is a central cross section of the fixture through the attaching springs; and

Fig. 3 is a perspective view of one of the attaching springs.

The invention is shown as embodied in a full sized fixture switch of the type adapted to be secured to ceilings but it is to be understood that the invention may also be embodied in ceiling rosettes for securing the cover to the base.

Referring to the drawing, the insulating base 10 consists of a circular body of porcelain or other similar material provided with suitable screw holes to receive the screws 11 by means of which the base is attached to the ceiling 12 or to an outlet box or the like. The base 10 is provided with suitable openingsnot shownin its base, through which the electric circuit wires may enter to be attached to binding posts-not shown. The face of the base 10 carries suitable brass terminals 13 and 14 which are electrically connected to the main electric binding post on the base, as is well known. The wires 15 and 16 which lead to the lamp or cluster of the fixture are connected to the brass terminals 13 and 14 and depend therefrom.

In the device shown a switch mechanism is located in the base 10 between the terminals 13 and 14 and the line terminals-mot shownand the operating chain 17 for the same extends out through a guide funnel 18 mounted on the base 10 and depends from the canopy.

The canopy or shell 19 comprises a hollow metal body substantially conical or bellshaped and having a large opening at the top and a small opening at the bottom. The shell 19 completely incloses the upper ends of the wires 15 and 16 and the wire terminals 13 and 14 and also incloses substantially all of the insulating base, its upper edge resting against the ledge 20 at the top there of. The Wires 15 and 16 extend down through the bottom opening 21 which is provided with suitable insulating bushings. Suitable rods or other fittings may be attached to the bottom of the canopy if desired.

The novel means for securing the shell 19 to the base 10 and supporting said shell comprises a pair of springs 22, one of which is shown in perspective in Fig. 3. The spring 22 consists of a strip of stiff resilient metal having a part 23 at one end bent substantially at right angles to the body of the spring and secured to the base 10 by means of a nut 24. The free end of the spring is provided with a knob or button 25 which has a rounded head and a cylindrical portion 26. The button is riveted to the spring 22 near its free end and when the shell 19 is in place the buttons on the springs will project through openings 27 in the shell. The upper edges of the openings rest on the shoulders formed by the cylindrical portions 26 of the buttons whereby the shell is rigidly supported in place and held up against the ledge 20. Then it is desired to remove the shell the springs 22, which normally press outwardly, are depressed by means of the fingers so as to permit the shell to pass over the heads of the buttons.

In order to remove the shell it is merely necessary to press the buttons 25 inwardly and pull on the shell whereupon the roundheaded buttons will slip out of the openings 27 and the shell will become detached from the base. In order to secure the shell to the base the large open end thereof is passed over the face of the base with the openings 27 in register with the springs on the base. The curved portion of the inner surface of the shell just above the openings 27 will press against the buttons 25 and force them inwardly toward the axis of the base until the openings 27 register with the buttons 25 when the latter will snap into the openings and will be held there by the outward pressure of the springs 22.

The shell 19 and the buttons 25 on the steel springs 22 are preferably made of brass and may be polished or finished alike so as to present an attractive appearance.

' Having thus described the invention, what is claimed and desired to be secured by Letters Patent is:

1 An electric fixture comprising a base, a hollow shell fitted about and projecting from the base, and a plurality of spring arms secured to the, base and each having a lateral projection that extends through an aperture in the wall of the shell and. by contact with the edges thereof supports the Copies of this patent may be obtained for shell from the base,the outer ends, of said projections, beyond the shell, terminating in rounded heads for thepurpose described.

2. An electricfixture comprising a base, a hollow shell fitted about and projecting from the base and provided in its side wall with two oppositely arranged apertures, two spring arms each secured at one end to the base and extending longitudinally therefrom within the shell, a button secured to each spring arm and extending outward through the apertures in the wall of the shell, each button having a rounded head' and a body that fits Within the aperture and supports the shell.

' In testimony whereof Iafiix my signature,

HARRY J. MOREY.

five cents each, by addressing the Qommissioner of Patents,

Washington, D. G. 

